Malaria is endemic in Nigeria. With the emergence of chloroquine resistance various modes of treatment including parenteral quinine are employed with consequent untoward effects. This article reports two cases of severe ocular toxicity, including mimicry of intracranial space-occupying lesion, from treatment of malaria with various drugs including quinine. Medical practitioners are advised to exhaust other less toxic modes of therapy before using drugs with great potential for severe untoward effects such as quinine.